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Leg Press Machines: 45-Degree, Seated and Hack Squat Combo

A leg press machine lets a member load the quads, glutes and hamstrings far beyond what they can squat, with the back supported and no bar on the spine. It is the heaviest-loaded machine on most gym floors and the first lower-body piece a commercial buyer specifies.

Types of Leg Press Machines

The 45-degree leg press runs a plate-loaded sled up an angled rail; it loads the heaviest and is the commercial standard. The seated horizontal leg press works off a weight stack with the user upright, which suits beginners, rehab and fast pin changes. The vertical leg press pushes straight up from a lying position and takes the least floor space. The leg press / hack squat combo flips between the two movements on one frame, which is the piece to buy when the floor has room for only one.

What to Check Before Buying

Sled starting weight matters for new members: a 45-degree sled that weighs 50 kg empty is a different machine from one that weighs 100 kg. Check the load capacity (400 kg and up for commercial use), the footplate size and angle adjustment, the back pad adjustment range, and whether the safety stops can be set from the seat. On a seated press, a 150 kg stack or a plate-loading option covers strong members.

How to Use a Leg Press Machine

Feet shoulder-width on the plate, slightly higher for the glutes and hamstrings, lower for the quads. Release the safeties, lower until the knees reach about 90 degrees without the lower back lifting off the pad, then press through the whole foot to just short of lockout. Three to four sets of 8 to 12 reps; lock the safeties before unloading plates.